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gold hip hop jewelry wholesale Jewelry products generally need to be attached to jewelry bags or jewelry boxes, which can make your service look more intimate through the following methods. Be sure to pack it in a carton. For jewelry, the 12 -layer No. 12 carton is enough. In order to save costs, you can go to the Internet to buy a carton. A 12 -layer 12 -layer cardboard box may be sold at 3 yuan in the post office, and you can buy it at 0.5 yuan or even cheaper. - It must be filled with other filled materials such as newspapers or foam so that jewelry boxes or jewelry bags are not shaken in the carton. The four corners of the carton must be wrapped in tape. Because there are many uncertain factors when mailing, such as another piece of liquid goods with liquid and your goods in the same packaging bag during delivery. Soaked. Therefore, the four corners of the carton must be wrapped in a wide tape, which can also prevent impacts better. Attach a product description card, which looks more professional. Since the 16th century, due to the rapid development of industrial production, especially the European industry revolution in the 19th century, it has greatly promoted the development of the packaging industry, which laid the foundation for the generation and establishment of modern packaging industry and packaging technology. At the end of the 18th century, French scientists invented the packaging and storage of food and storage of food, which led to the canned glass food and Cankon iron food in the early 19th century, allowing food packaging to learn rapidly. In the 19th century, the packaging industry began to develop in an all -round way, and the machinery box appeared in 1800; the first long net papermaker appeared in the United Kingdom in 1814; in 1818 tin -plated metal tanks; in 1856, the United States invented the corrugated paper; Chengchengbagmaker; in 1868 the United States invented the first synthetic plastic bag -Clone; in 1890, the US Railway Freight Commission opened
wholesale jewelry charloyye nc More than 40 colleges and universities in China have started the packaging engineering major, and the packaging talent team has grown. With the improvement of human civilization, new products continue to rise, and some new products involve new areas that humans have not yet involved. For example, microelectronics, superconductors, biological genes, nano products, etc. These new products have also put forward new challenges to the packaging design itself, how to protect, retain these products, how to make them safely in the field of smooth and smooth people, and how to succeed in trade sales. These new topics have promoted the continuous update and improvement of packaging structure, new materials, and visual communication, thereby meeting the needs of new products and the times. With the improvement of the product's own technology, new requirements have also been put on the packaging form. Let's give a medical packaging example, a blood collection bag for blood donation. In order to keep the blood fresh, the active cells in the blood need to "breathe". Therefore, the packaging material uses a breathable salinized polyethylene plastic bag. This material is soft, easy to process, and the followality of the vasalizer is also very good. Unlike the glass bottle, it is as fragile and transparent, and the health maintenance is also very convenient. It is an ideal medical container () If we look closely at the blood bag, we will find that there is a transparent liquid inside and mixed with bubbles. To prevent blood coagulation and provide a reserved liquid for nutrients required for red blood cells in the blood, it provides an environment for blood retention. This plastic blood collection bag packaging has been used since 1980, replacing the previous glass bottle, which is generally used in blood retention.
deer antler jewelry wholesale In the 20th century, the development of science and technology is changing with each passing day. New materials and new technologies have continued to appear. Poetry, paper, glass, aluminum foil, various plastic, composite materials and other packaging materials are widely used. Sterile packaging, shockproof packaging, anti -theft packaging, insurance, insurance, insurance, insurance Technologies such as packaging, combined packaging, and composite packaging have become increasingly mature, and the packaging function of packaging has been strengthened from various aspects. Beginning in the middle and late 20th century, international trade has developed rapidly. Packaging has been valued by countries around the world. About 90%of goods need to go through different degrees of packaging. Packaging has become an indispensable important link in the process of commodity production and circulation. Electronic technology, laser technology, and microwave technology are widely used in the packaging industry. Packaging design realizes computer -aided design (CAD), and packaging production also realizes mechanization and automated production. The development of packaging industry and technology has promoted the formation of scientific research and packaging of packaging. Packaging discipline culverts in physics, chemistry, biology, humanities, art and other aspects of knowledge, which are comprehensive science in cross -disciplinary groups. It organically absorbs and integrates new theories, new materials, new technologies and new processes of different disciplines. System engineering views to solve comprehensive problems in the process of circulation such as commodity protection, storage, transportation, and promotion of sales. The classifications of packaging disciplines are relatively diverse, and they are usually classified as packaging materials, packaging transportation, packaging technology, packaging design, packaging management, packaging decoration, packaging testing, packaging machinery and other disciplines.